1. Kev npaj
Nrog rau kev npaj cov tsev qiv ntawv tivthaiv thiab schematics.Ua ntej PCB tsim, ua ntej npaj cov schematic SCH tivthaiv tsev qiv ntawv thiab PCB tivthaiv pob tsev qiv ntawv.
PCB tivthaiv pob tsev qiv ntawv yog qhov zoo tshaj plaws tsim los ntawm engineers raws li tus qauv loj cov ntaub ntawv ntawm cov khoom xaiv.Hauv txoj ntsiab cai, ua ntej tsim lub PC tivthaiv pob lub tsev qiv ntawv, thiab tom qab ntawd tsim lub tsev qiv ntawv schematic SCH.
PCB tivthaiv pob tsev qiv ntawv yog xav tau ntau dua, nws ncaj qha cuam tshuam rau PCB installation;schematic SCH tivthaiv cov tsev qiv ntawv yuav tsum tau so, tab sis ua tib zoo saib rau lub ntsiab lus ntawm tus pin zoo thiab kev sib txuas lus nrog PCB tivthaiv pob tsev qiv ntawv.
2. PCB qauv tsim
Raws li lub rooj tsavxwm loj tau raug txiav txim siab thiab ntau qhov chaw kho tshuab, PCB tsim ib puag ncig los kos lub PCB pawg thawj coj saib, thiab qhov chaw yuav tsum tau muab cov khoom sib txuas, cov yuam sij / keyboards, ntsia hlau qhov, sib dhos qhov, thiab lwm yam.
Ua tib zoo xav txog thiab txiav txim siab txog thaj chaw xaim thiab thaj chaw tsis muaj xov hlau (xws li ntau npaum li cas nyob ib ncig ntawm lub qhov ntsia hlau yog nyob rau thaj chaw tsis muaj xov hlau).
3. PCB layout tsim
Layout tsim yog qhov kev tso kawm ntawm cov khoom siv hauv PCB ncej raws li cov qauv tsim.Tsim ib lub rooj sib tham hauv lub cuab yeej schematic (Design →CreateNetlist), thiab tom qab ntawd import lub rooj sib tham hauv PCB software (Design → ImportNetlist).Tom qab kev vam meej ntshuam ntawm lub network rooj yuav muaj nyob rau hauv keeb kwm yav dhau ntawm lub software, los ntawm qhov chaw ua hauj lwm yuav ua tau tag nrho cov pab kiag li lawm hu tawm, nruab nrab ntawm cov pins nrog ya cov lus qhia kev cob cog rua, ces koj muaj peev xwm tsim lub layout ntawm lub ntaus ntawv.
PCB layout tsim yog thawj txheej txheem tseem ceeb nyob rau hauv tag nrho cov txheej txheem tsim ntawm PCB, ntau complex PCB board, qhov zoo dua layout tuaj yeem cuam tshuam ncaj qha rau kev yooj yim ntawm kev siv ntawm cov xaim tom qab.
Layout tsim cia siab rau lub Circuit Court board designer qhov yooj yim Circuit Court kev txawj ntse thiab tsim kev paub, board designer yog ib tug ntau dua ntawm cov yuav tsum tau.Junior circuit board designers yog tseem ntiav cov kev paub, haum rau me me module layout tsim los yog tag nrho lub rooj tsavxwm yog tsawg nyuaj PCB layout tsim ua hauj lwm.
4. PCB thaiv kev tsim
PCB thaiv kev tsim yog qhov ua haujlwm loj tshaj plaws hauv tag nrho cov txheej txheem tsim PCB, uas cuam tshuam ncaj qha rau kev ua haujlwm ntawm PCB pawg thawj coj saib.
Hauv cov txheej txheem tsim ntawm PCB, kev xaim feem ntau muaj peb thaj chaw.
Ua ntej, daim ntaub los ntawm, uas yog qhov yooj yim nkag mus rau PCB tsim.
Qhov thib ob, kev ua haujlwm hluav taws xob kom tau raws li qhov kev ntsuas ntawm seb puas yog lub rooj tsav xwm PCB tsim nyog, tom qab txoj kab dhau los, ua tib zoo kho cov xaim, kom nws tuaj yeem ua tiav cov hluav taws xob zoo tshaj plaws.
Ib zaug ntxiv yog qhov zoo nkauj thiab zoo nkauj, tsis muaj kev sib txuas, txawm tias qhov kev ua tau zoo ntawm hluav taws xob kuj tseem yuav ua rau muaj kev cuam tshuam loj heev rau kev txhim kho tom qab ntawm lub rooj tsavxwm thiab kev ntsuam xyuas thiab kev saib xyuas, cov xaim yuav tsum huv thiab huv si, tsis tuaj yeem crisscrossed yam tsis muaj kev cai thiab kev cai.
5. Kev ua kom zoo ntawm cov kab hlau thiab silkscreen tso
"PCB tsim tsis yog qhov zoo tshaj plaws, tsuas yog zoo dua", "PCB tsim yog ib qho kev kos duab tsis zoo", feem ntau vim tias PCB tsim kom ua tiav cov kev xav tau ntawm ntau yam ntawm cov khoom siv kho vajtse, thiab cov kev xav tau ntawm tus kheej yuav muaj kev sib cav ntawm cov ntses thiab dais. paw tsis tuaj yeem yog ob leeg.
Piv txwv li: PCB tsim qhov project tom qab lub rooj tsavxwm tsim los ntsuas qhov xav tau los tsim lub rooj tsavxwm 6-txheej, tab sis cov khoom siv kho vajtse rau kev txiav txim siab tus nqi, qhov yuav tsum tau tsim los ua 4-txheej board, tom qab ntawd tsuas yog tus nqi ntawm cov khoom siv. teeb liab thaiv hauv av txheej, uas ua rau muaj teeb liab ntxiv crosstalk ntawm cov kab txuas uas nyob ib sab, cov teeb liab zoo yuav raug txo.
Qhov kev tsim qauv dav dav yog: optimize lub sij hawm xaim yog ob zaug ntawm lub sij hawm pib xaim.PCB thaiv kev ua kom zoo dua yog ua tiav, qhov xav tau rau kev ua haujlwm tom qab, thawj qhov kev ua haujlwm yog PCB pawg thawj coj saib ntawm lub logo silk-screen, tsim cov txheej hauv qab ntawm cov cim silk-screen yuav tsum ua daim iav, thiaj li tsis mus. tsis meej pem nrog rau sab saum toj txheej ntawm silk-screen.
6. Network DRC kuaj thiab kuaj qauv
Kev tswj xyuas kev ua tau zoo yog ib feem tseem ceeb ntawm cov txheej txheem tsim PCB, cov txheej txheem kev tswj xyuas zoo suav nrog: tsim kev tshuaj xyuas tus kheej, tsim kev tshuaj ntsuam xyuas, cov rooj sib tham kws tshaj lij, kev tshuaj xyuas tshwj xeeb, thiab lwm yam.
Schematic thiab structural ntsiab ntawm daim duab kos duab yog qhov tseem ceeb tshaj plaws uas yuav tsum tau tsim, network DRC check thiab qauv kuaj xyuas yog kom paub meej tias cov PCB tsim kom tau raws li schematic netlist thiab structural ntsiab ntawm daim duab ntawm ob lub tswv yim.
General board designers yuav muaj lawv tus kheej sau tsim zoo checklist, uas yog ib feem ntawm cov nkag los ntawm lub tuam txhab los yog department specifications, lwm ib feem los ntawm lawv tus kheej kev cov ntsiab lus.Cov kev txheeb xyuas tshwj xeeb suav nrog kev tsim ntawm Valor kos thiab DFM kos, ob feem ntawm cov ntsiab lus no txhawj xeeb txog PCB tsim tawm cov ntaub ntawv rov qab-kawg ua cov duab teeb duab.
7. PCB board ua
Hauv kev ua haujlwm ntawm PCB ua ntej lub rooj tsavxwm, tus tsim qauv tsim Circuit Court yuav tsum sib txuas lus nrog PCB A supply board Hoobkas PE, los teb cov chaw tsim khoom ntawm PCB pawg thawj coj saib xyuas cov teeb meem.
Qhov no suav nrog, tab sis tsis txwv rau: kev xaiv ntawm PCB pawg thawj coj saib, kab dav kab sib nrug hloov kho ntawm cov kab txheej, kev hloov kho impedance, PCB lamination thickness hloov kho, txheej txheem kev kho deg, qhov kev kam rau siab tswj thiab xa cov qauv.
Post lub sij hawm: May-10-2022